Search found 42 matches

by mrdebug
Fri May 22, 2020 7:41 am
Forum: General Discussion
Topic: Unable to use my esp32 demo board after having tried flash encryption
Replies: 1
Views: 2050

Unable to use my esp32 demo board after having tried flash encryption

Hi, after having tried the flash encryption example my demo board has started sometimes. But now I obtain the error: ets Jun 8 2016 00:22:57 rst:0x1 (POWERON_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT) flash read err, 1000 ets_main.c 371 ets Jun 8 2016 00:22:57 rst:0x10 (RTCWDT_RTC_RESET),boot:0x13 (SPI_...
by mrdebug
Wed Apr 08, 2020 6:08 am
Forum: General Discussion
Topic: Esp32 and wifi laboratory test.
Replies: 3
Views: 5259

Re: Esp32 and wifi laboratory test.

Hi, I'm using esp-idf.
I need not only connect and disconnect but send custom packets.
by mrdebug
Tue Apr 07, 2020 12:39 pm
Forum: ESP-IDF
Topic: Send and receive custom packet
Replies: 3
Views: 9191

Re: Send and receive custom packet

Hi, have you found the way to send custom packets?
by mrdebug
Mon Apr 06, 2020 8:18 am
Forum: General Discussion
Topic: Esp32 and wifi laboratory test.
Replies: 3
Views: 5259

Esp32 and wifi laboratory test.

Hi, the new device based on esp32 is completed.
Now we have to make the wifi trasmissions test in an anechoic room.
I need a way to generate a sequence of wifi packets with a specified interfame time.
Can someone give me an example on how to do that?
Many thanks.
by mrdebug
Fri Mar 27, 2020 8:24 am
Forum: General Discussion
Topic: 23k external crystal
Replies: 3
Views: 4156

Re: 23k external crystal

Are you saying that it is not necessary to implement it by code but only by the menuconfig option, such as the screenshot below below? If yes I still reading "clk: 32 kHz XTAL not found, switching to internal 150 kHz oscillator" http://www.denisgottardello.it/Screen01.png Can you explain the gpio25 ...
by mrdebug
Mon Mar 23, 2020 11:23 am
Forum: General Discussion
Topic: 23k external crystal
Replies: 3
Views: 4156

23k external crystal

Hi, I need to use an external crystal oscillator 32k. Can someone suggest me an example on how to use it?
I don't find any example.
Best regards.
by mrdebug
Fri Jan 17, 2020 9:38 am
Forum: General Discussion
Topic: esp-idf, mutex and semaphore
Replies: 1
Views: 5836

esp-idf, mutex and semaphore

Hi, in esp-idf is there difference between mutex and semaphore?
Thanks.
by mrdebug
Thu Dec 26, 2019 11:06 am
Forum: General Discussion
Topic: mbedtls_rsa_context to pem format
Replies: 0
Views: 1847

mbedtls_rsa_context to pem format

Hi, I have a mbedtls_rsa_context object that contains the private and public keys.
is there a way to obtain a string that the public key in pem (base64) format or in the standard base64 format, and not the subcomponents (N, P, Q, D, E, DP, DQ, QP)?
Regards.
by mrdebug
Wed Dec 25, 2019 9:24 am
Forum: General Discussion
Topic: Check ota firmware signature with rsa 2048 base64 public key.
Replies: 0
Views: 1794

Check ota firmware signature with rsa 2048 base64 public key.

Hi, before to use a new firmware I have to store it in the spiffs partition and check the signature using a rsa 2048 public key. The public key isn't in pem format it is in base64 format. Has anyone got an example on how to check the signature of a file or a stream in esp32, using a base64, public k...